THE OHIO DEPARTMENT OF TRANSPORTATION Survey and Mapping Specifications January 17, 2020 Prepared by ODOT CADD & Mapping Services Engineering Ohio Department of Transportation January 17, 2020 Office of CADD and Mapping Services Table of Contents Glossary of Terms ................................................................................................................................................ iv Reference Documents .......................................................................................................................................... 7 100 Introduction ................................................................................................................................................... 8 101 Purpose ............................................................................................................................................ 8 102 Audiences ......................................................................................................................................... 8 103 Scope of Work .................................................................................................................................. 8 104 Quality Control Report ..................................................................................................................... 8 200 Safety ............................................................................................................................................................. 8 201 General ............................................................................................................................................. 8 202 Public Utilities ................................................................................................................................... 8 203 Traffic Control .................................................................................................................................. 8 204 Construction Site Safety ................................................................................................................... 9 205 Confined Space Entry ....................................................................................................................... 9 300 Datum’s, Coordinate Systems, and Positioning Parameters ......................................................................... 9 301 Vertical Positioning .......................................................................................................................... 9 302 Horizontal Positioning ...................................................................................................................... 9 400 Units of Measurement ................................................................................................................................. 10 401 U.S. Survey Foot Definition ............................................................................................................ 10 402 Distance .......................................................................................................................................... 10 403 Angles ............................................................................................................................................. 10 404 Direction ......................................................................................................................................... 10 405 Area ................................................................................................................................................ 10 406 Volume ........................................................................................................................................... 10 ODOT Survey and Mapping Specifications Page i Ohio Department of Transportation January 17, 2020 Office of CADD and Mapping Services 407 Horizontal/Vertical Positions ......................................................................................................... 10 500 Types of Surveys .......................................................................................................................................... 10 501 General ........................................................................................................................................... 10 501.1 Property Owner Notification of Entry ........................................................................... 10 502 Control Surveys .............................................................................................................................. 11 502.1 General .......................................................................................................................... 11 502.2 Project Control ............................................................................................................... 11 502.3 Differential Leveling .................................................................................................................... 19 503 Boundary Surveys ........................................................................................................................... 20 503.1 General .......................................................................................................................... 20 503.2 Boundary Surveys .......................................................................................................... 20 503.3 Right of Way & Highway Centerline Surveys ................................................................. 20 504 Mapping Surveys ............................................................................................................................ 20 504.1 General .......................................................................................................................... 20 504.2 Accuracies ...................................................................................................................... 20 504.3 Ground Control .............................................................................................................. 22 504.4 Deliverables ................................................................................................................... 22 600 Survey and Mapping Equipment .................................................................................................................. 23 601 Equipment Care and Maintenance ................................................................................................ 23 602 Equipment Types and Specifications .............................................................................................. 23 602.1 Levels ............................................................................................................................. 23 602.2 Total Stations ................................................................................................................. 23 602.3 GNSS Receivers .............................................................................................................. 24 602.4 Remote Sensing Systems ............................................................................................... 24 ODOT Survey and Mapping Specifications Page ii Ohio Department of Transportation January 17, 2020 Office of CADD and Mapping Services 603 Equipment Calibration and Maintenance ...................................................................................... 24 603.1 Levels ............................................................................................................................. 24 603.2 Total Stations ................................................................................................................. 24 603.3 Tripods, Tribrach’s, Prism Rods, and RTK Rods ............................................................. 24 Appendix A –Planimetric Collection.................................................................................................................... 26 Standard Mapping Collection Features ................................................................................................. 27 Additional Aerial Mapping Collection Features .................................................................................... 28 Appendix B –Example RMSE Calculation for Vertical TIN & Horizontal Planimetric Features ........................... 30 Appendix C –Example Mapping Quality Control Report ..................................................................................... 34 Appendix D – Example Static GNSS Coordinate Statistical Analysis ................................................................... 42 Appendix E – Example OPUS Report ................................................................................................................... 44 Appendix F – Surveyor’s Certification Statement ............................................................................................... 46 Appendix G – Property Owner Notification ........................................................................................................ 48 Appendix H – Geodetic/Project Control Monuments ......................................................................................... 50 Appendix I – L & D Manual G105 Survey Parameters ......................................................................................... 54 Appendix J – Project Scale Factor Calculations ..................................................................................................